DE2057615A1 - Device for holding and guiding film in roll or plate form - Google Patents

Description

Dr. Ing. E. BERKENFELD · DipL-fng. H. BERKENFELD, patent attorneys, Cologne Attachment file number

for entry from 17. ΝΟΥβΠΙΟβΓ 1970 VA // Nome d. Note METAGRAPHIC SYSTEMS, INC,

Device for holding and guiding film in roll or plate form

The invention relates to film viewers and, more particularly, to micro-

film sailing equipment. j

Microfilm is available in a number of film formats, which have been used extensively as a means of storing large volumes of information in relatively small storage areas can be used. Some of the most popular formats are microfilm in roll form, in plate form and in card form. Microfilm in roll form consists of a continuous strip of film, which is wound on a spool and which contains spaced apart images or slides. Microfilm in card form consists of a film that contains one or more images which are intended for easier handling and Storage are arranged on a card. Plate microfilm, commonly referred to as a microfilm jet, be f generally consists of a rectangular film plate containing a plurality of film frames arranged in rows and Columns are arranged.

Roll microfilm is useful for storing large amounts of information. Microfilm bearing plates and cards are useful for storing smaller clusters of information. Depending on the needs, microfilm can be in one of these forms to be favoured. However, there are many cases where more than one shape is desirable. The microfilm plate can, for example can be used to update the information on rolls of microfilm. In such cases

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len are now separate microfilm and microfilm plate viewers necessary.

A device for holding and guiding film in roll or plate form for viewing one type of film through a lens, having means for successively guiding portions of the film in roll form into a first viewing position the lens, which is arranged in a first plane, is characterized according to the invention by a device for arranging the film in plate form in a second plane parallel to the first plane, which is a second viewing position of the lens contains, by means of means for arranging "the lens for movement relative to the viewing positions for the purpose of focusing on film in a viewing position and by means for moving the sheet of film within the second plane by a desired portion to arrange the same within the second viewing position.

According to the invention there is further provided a microfilm reading device for viewing microfilm in roll or plate form, comprising an objective lens, a light source directed towards the objective lens, a screen, a device for displaying images Jk passing through the objective lens on the screen, a device a device for successively guiding parts of the film in roll form into a first viewing position of the objective lens which is arranged in a first plane, this first plane being arranged between the objective lens and the light source and perpendicular to a center line passing through the axis of the objective lens for placing the film in plate form in a second plane disposed between the objective lens and the light source, the second plane being parallel to the first plane, and including a second viewing position of the objective lens, means for moving the objective lens e perpendicular to the planes and means for moving the sheet-like film in at least two directions

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within the second plane in order to arrange a desired film frame thereon within the second viewing position.

Also in accordance with the invention is apparatus for holding and guiding film in roll or plate form for viewing rectangular areas of one type of film provided by a lens, the rectangular areas on the film in roll form one behind the other and on the film in plate form in columns and rows, consisting of a roll film guide device for successively feeding rectangular areas of the film in roll form into a first viewing position the lens, which is arranged in a first plane, ι from a holder for receiving and holding the film in plate form, from a device which arranges the holder so that the film held by it in a parallel to the first plane second level is arranged, wherein the second level contains a second viewing position of the lens, from a Means for arranging the lens for movement relative to the viewing positions for the purpose of focusing on film in a viewing position, from a first fastening device, which the holder for the forward and backward movement arranged within the second plane in a first direction, and from a second fastening device, which the holder for the forward and backward movement within the second plane in a direction perpendicular to the first direction I. Direction so that any selected rectangular area of the sheet of film is in the second viewing position can be arranged.

hereinafter the invention will be described with reference to the drawings described in which shows:

1 is a perspective view of a microfilm viewer according to the invention,

Fig. 2 is a perspective view of a device for HaI-

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th and feeding of film in roll or plate form for viewing the film through a lens, wherein the The lens and the plate film holder are in the position for viewing roll film,

FIG. 3 shows another perspective view of the device according to FIG Fig. 2, which illustrates the plate film viewing position of the plate film holder and lens,

Fig. 4 is a perspective view of the plate film holder and the means for securing the holder;

Fig. 5 is a side view of the plate film holder.

Fig. 1 is a perspective view of a microfilm reader 10 according to the invention. The reader 10 has an adjustment button 12 for the position of the objective lens and an adjustment knob 14 for the feed speed of the roll film, which are arranged on a control panel 15. The object! Vlinse 16 is arranged between the spool 18 for feeding the roll film and the spool 20 for receiving the roll film. the Objective lens 16 forms part of an imaging system for displaying objects passing through objective lens 16 Images on a screen 26.

The roll film 24 is conveyed during the advance from the spool 18 onto an elongated film guide part 25 and on the same past a viewing position of the objective lens 16, which is arranged in the middle of a center line passing through the central Gb longitudinal axis of the objective lens 16 and indicated by the dash-dotted line Line 22 is indicated. From there the film is fed to the take-up spool 20.

It can be seen from this that the microfilm reading device shown in FIG 10 is used to view the roll film 24. If it is desired to view film in sheet form, then it will the roll film 24 is wound on the spool 18 and the (in Fig.

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1 (not shown) plate-shaped film is placed in a plate film holder 28 arranged. As will be explained in more detail below, the plate film holder 28 is then moved to a position in which the film in plate form in the middle of the center line 22 and below the first viewing position of the Objective lens 16 is arranged.

The device used in reader 10 for holding and guiding film in roll or plate form for viewing Film images on the film through the objective lens 16 is shown in Fig.

2 to which reference is now made. In Fig. 2 the roll film 24 is as part of a film cassette 30 shown. The spool 18 forms an integral part of the film cassette 30.

The elongated film guide part 25 consists of a flat one Strip 32 having parallel, upwardly directed, elongated guide portions 34 and 36. The leadership parts 34 and 36 are parallel to the elongated edges 38 and 40 of the strip 32 and are in the plane of the strip 32 vertical. The guide parts 34 and 36 are at a predetermined distance from one another. In the middle of the guide parts 34 and 36, a film guide channel 42 is arranged which is delimited by a recess formed in the strip 32 will. The sides 44 and 46 of the film guide channel 42 are also a predetermined distance apart.

Many microfilm cartridges use microfilm in roll form with a front portion (not shown) that is wider than the film itself is. The guide parts 34 and 36 have such a predetermined distance that they are the front end record and guide such a cassette film. The sides 44 and 46 of the film guide channel 42 are at such a distance from each other that the roll film itself is taken up and cut along a desired path at one in strip 32 Viewing opening 47 is guided past and below a plate guide member 48. It can also be

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tere guide devices are provided to self-feed of the roll film 24 to enable. However, since such devices are known and do not form part of the invention, they have not been shown.

The image display system of the microfilm reader 10 for displaying of images on the screen 26 passing through the objective lens 16 contains, in addition to the objective lens 16, a light source 50 directed through the viewing opening 27 towards the objective lens. As the design of the image display system Objective lens 16, screen 26 are only objective lens 16, may have many known shapes and do not form part of the invention and the light source 50 is shown.

It should be noted that in the roll film viewing position shown in FIG of the device, the plate film holder 28 is out of the way between the light source 50 and the objective lens 16 is arranged so as not to obstruct the viewing of the roll film 24 in any way. This can also be done by moving of the plate film holder 28 are effected in a position in which the through the sides 94 and 96 of the holder, the Pialter handle 84 and upper plate handle 92 delimited open area above viewing opening 47.

Fig. 3g shows a further perspective view of the device 2, in which the film cassette 30 is removed while the plate film holder 28 and the objective lens 16 are in the plate film viewing position.

When the film cassette 30 is removed, it can be seen that the end of a roll film drive shaft 51 is mounted in a frame part 52 of the reading device 10. The drive shaft 51 can support the film cassette 30 and drive the spool 18. The coil 20 is rotatably arranged on a further frame part 54 ″.

In order to bring the plate film holder 20 into the plate film viewing position, it is drawn along the strip 32 in FIG

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shifted to a position in which the plate film 58 is interposed between the objective lens 16 and the light source 50 (Fig. 2) is. The plate film carries rectangular film frames 60 which can be viewed through the viewing opening 46.

The viewing position of the plate film lies in a plane determined by the plate film and is therefore the one shown Embodiment arranged below the strip 32. The viewing position of the roll film lies in a plane which is determined by that part of the roll film which is located below the plate guide part 48 during viewing, and is therefore located above and adjacent to the plane defined by the bottom of the film guide channel 42 will. The distance between the two viewing planes is preferably as small as possible. The distance must, however have such a length that the thickness of the strip 32 below the film guide channel 42 is the required thickness has mechanical strength. This distance is preferably less than 6.25 mm and in the preferred embodiment this distance is approximately 3.125 mm.

To adjust the objective lens 16 to the film frames 60, the same must be moved from the setting shown in FIG. 2 on the roll film 24 into the position shown in FIG. This is done by turning the setting knob 12 for the position the objective lens, which actuates a known (not shown) linkage which ends in the link 61, which is connected to the Housing part 62 of the objective lens is connected. If so desired can be the adjustment knob 12 for the position of the objective lens and its associated linkage can be replaced by a single link, such as the link 61 associated with the frame of the reader 10 is connected in such a way that the movement of the handlebar by manual movement of its end 64 is the desired Setting causes.

The device, which in the illustrated preferred embodiment

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Guide shape causes the sliding movement of the plate film holder 28 in a first direction along the strip 32, causes also movement of the plate film holder 28 in a second direction in the plane of movement of the first direction and perpendicular to the first direction. This device consists quite generally of the fastening parts 66 and 68, which by means of elbows 67 and 69 connected and held in a fixed relationship, As will be explained below, this makes proportionate simple construction, a very effective means of moving the film plate holder 28 in the specified manner Directions for arranging a desired rectangular film frame 60 of the plate film 58 in the plate film viewing position to enable.

The plate film holder 28 is in the channels 63 and 65 of the parts 66 or 68 arranged displaceably. Storage material can be applied to the portions of the holder 28 that engage the channels 63 and 65 stand, or be applied to the channels themselves. In the preferred embodiment, parts 66 and 68 are made of nylon produced and therefore bring about a relatively smooth sliding movement of the holder 28.

Each of the parts 66 and 68 also have opposing cooperating ones Channels 70, 72 and 74, 76, by means of which the parts on the longitudinal edges 38 and 40 of the strip 32 shift bar are arranged for the purpose of sliding movement in the longitudinal direction of the strip 32. The channels 70, 72 and 74, 76 are designed so that the arranged in the holder 28 plate film 58 is in a parallel to the strip 32 and below the same lying plane moves. The channels 63 and 65 are formed so that when the holder 28 is moved along the channels the plate film 58 arranged in the holder 28 moves in a plane parallel to the strip 32 and lying below the same. The channels 63 and 65 are formed so that when the holder 28 is moved along the channels, the plate film 58 in the plane is moved, which is caused by the longitudinal movement of the plate film in the directions perpendicular to this longitudinal movement

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In order to view a desired rectangular film image 60, the holder is moved in the longitudinal direction of the strip 32 by mechanical movement of the holder 28 and the unit consisting of the fastening parts 66, 68 and the angle pieces 67, 69. This can be done by gripping the holder 28 and sliding the entire unit or by gripping one or both of the fastening parts and the entire unit along the strip by means of the channels 70, 74 and 72, 76 cooperating with the longitudinal edges 40 and 38, respectively moved v / ird. If, for example, the column containing the desired film frame 60 is located in the viewing position of the objective lens 16, the sliding movement is stopped. The holder 28 is then grasped with the handle 84 and moved towards or away from the strip 32, around the row , which contains the desired film frame 60, to be arranged in the viewing position. In FIG. 3, the film image 60, through which the center line 22 passes, is in the viewing position for display on the screen 26 of the reading device 10. A mechanized drive device could also be provided for the fastening parts 66, 68 and the holder 28 to move so that the manual operation is replaced, for example, by a push-button control.

Fig. 4 shows a perspective view of the connected fasteners 66, 68 and the plate film holder 28. The spacing of the parts 66 and 68 is determined by their connections with the V / pin pieces 67, 69 determined and is dimensioned so that the holder 28 along the channels 63 and 65 without undue play shifts slightly so that the holder remains in a relatively stationary position relative to parts 66 and 68, as soon as a row is selected. The connections are made by fasteners such as screws 82. The cooperating opposed channels 70, 72 and 74, 76 are designed so that they the sliding movement of the whole unit in the longitudinal direction of the strip 32 without undue play, so that the holder and the fastening parts in a relatively stationary position relatively

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to the viewing opening 46 remain as soon as a column is selected.

Fig. 5 shows a side view of the holder 28. It consists of upper and lower plate parts 86 and 88, respectively. These are transparent at least in those areas which are adjacent on the plate film held in the holder 28. The upper plate 86 is articulated with the lower plate 88 connected, for example by means of an adhesive strip 90. To remove the plate film from the holder, the upper Plate 86 away from lower plate 88 in the direction indicated by arrow 89 in the direction interrupted by the parallel ^ raised line indicated position. To reverse the process, the top plate 86 is changed to that shown in FIG Moved back position which covers the lower plate 88.

The invention is not limited to the illustrated and described preferred embodiment, which has various modifications can experience without departing from the scope of the invention.

Claims

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Claims (10)

Dr. Ing.E. BERKENFELD. Dipl.-Ing. H. B ERKEN FELD _f patent attorneys, Cologne Attachment file number _{on the} submission of November 17, 1970 Schi // _{Name d} . _Note METAGRAPHIC SYSTEMS, INC. PATENT CLAIMS IJ Device for holding and guiding film in roll or plate form for viewing both types of film through a lens, with a roll film guide device for successively guiding parts of the film in roll form into a first viewing position of the lens, which is arranged in a first plane, characterized by a plate Guide means (25, 28) for arranging the film (58) in plate form in a second plane parallel to the first plane and containing a second viewing position of the lens (16) by means (12, 61, 62) for arrangement the lens (16) for movement relative to the viewing positions for the purpose of focusing on the film in both viewing positions ,, wherein the plate film guide means further includes means (66, 68, 63, 65, 70, 72, 7 ¹ *, 7β) _ for moving of the sheet-like film within the second plane to locate a desired portion thereof within the second viewing position en. 2. Device according to claim 1, characterized in that the first and second planes at a distance of less than 6.25 mm apart. 3. Apparatus according to claim 1 or 2, characterized in that the plate film guide device is a plate film holder (28) for receiving and holding a film (58) in plate form and a first fastening device (70, 72, 74, 76) for arranging the holder for the forward and Backward movement within the second level in a first M 97/1 - 11 - 10982 5/1 ^ 95 Direction and. a second fastening device (63, 65) for Arrangement of the holder for the forward and backward movement within the second plane in a direction perpendicular to the first direction Direction. 4. Apparatus according to claim 3, characterized in that the roll film guide device has an elongated part (25) and that the first fastening device consists of devices (70, 72, 74, 76) for the arrangement of the holder for the movement is in the longitudinal direction of the elongate part. 5 · Device according to claim 4, characterized in that "the elongated part (25) has a pair of parallel longitudinal edges (38, 40) comprises that the first fastening device (70, 72, 74, 76) has a pair of fastening parts (66, 68) and that the fastening parts on the longitudinal edges (38, 40) are slidably arranged to allow the movement of the holder in the longitudinal direction to effect the elongated part. 6. Apparatus according to claim 5, characterized in that the fastening parts (66, 68) have a second fastening device (63, 65) which position the holder between the mounting parts for movement in the second direction. fc 7. Apparatus according to claim 6, characterized in that the holder (28) has a pair of parallel edge portions (94, 96) and that the second fastening means has a pair of opposite one another having parallel channels (63, 65) in each of the fastening parts (66, 68) in which the edge parts (94, 96) of the Holder are slidably arranged. 8. Apparatus according to claim 7, characterized in that the first fastening device is second parallel channels (70, 72, 74, 76) in the mounting parts (66, 68) offset to the pair of opposed parallel channels (63, 65) and are arranged perpendicular to the same, and that the H 97/1 - 12 - 1098? 5/1295 parallel longitudinal edges (38, 40) of the elongated part (25) are arranged displaceably in the second parallel channels, to effect the sliding movement in the longitudinal direction of the elongate part. 9. Device according to one of claims 4 to 8, characterized in that that the film (24) in roll form has a front part whose width is greater than the width of the Images containing film part, that the elongated part (25) consists of a flat rectangular strip (32), which is a Pair of parallel, elongated guide members (34, 36) which protrude from one side thereof that the elongated Guide parts are at such a distance from each other that they receive and guide the front part, as well as that the strip (32) further has a guide channel (42) which in the middle of and parallel to the elongated Guide parts is arranged and shaped so that the same receives the film part containing the images and guides. 10. Device according to one of the preceding claims, characterized characterized in that the film in roll form consists of a microfilm roll and the film in plate form consists of a microfilm plate. M 97/1 - 13 - 109825/1795 1H Blank page